<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .container{
            display: flex;
            width: 60px;
            height: 60px;
            background-color: darkgray;
            padding: 5px;
            border-radius: 3px;
            margin: 10px;
        }
        .item{
            /* display: inline-block; */
            height: 15px;
            width: 15px;
            background-color: black;
            border-radius: 50%;
        }
        .container2{
            justify-content: space-between;
        }
        .container2>.item2{
            align-self: flex-end;
        }
        .container3{
            justify-content: space-around;
        }
        .container3>.item2{
            align-self: center;
        }
        .container3>.item3{
            align-self: flex-end;
        }
        .container4{
            flex-direction: column;
            justify-content: space-between;
        }
        .container4>.box{
            display: flex;
            justify-content: space-between;
        }
        .container5{
            flex-direction: column;
            justify-content: space-between;
        }
        .container5>.box{
            display: flex;
            justify-content: space-between;
        }
        .container5>.box2{
            justify-content: center;
        }
        .container6{
            flex-direction: column;
            justify-content: space-around;
        }
        .container6>.box{
            display: flex;
            justify-content: space-around;
        }
    </style>
</head>
<body>
    <div class="container">
        <span class="item"></span>
    </div>
    <div class="container container2">
        <span class="item"></span>
        <span class="item item2"></span>
    </div>
    <div class="container container3">
        <span class="item"></span>
        <span class="item item2"></span>
        <span class="item item3"></span>
    </div>
    <div class="container container4">
        <div class="box">
            <span class="item"></span>
            <span class="item"></span>
        </div>
        <div class="box box2">
            <span class="item"></span>
            <span class="item"></span>
        </div>
    </div>
    <div class="container container5">
        <div class="box">
            <span class="item"></span>
            <span class="item"></span>
        </div>
        <div class="box box2">
            <span class="item"></span>
        </div>
        <div class="box">
            <span class="item"></span>
            <span class="item"></span>
        </div>
    </div>
    <div class="container container6">
        <div class="box">
            <span class="item"></span>
            <span class="item"></span>
        </div>
        <div class="box box2">
            <span class="item"></span>
            <span class="item"></span>
        </div>
        <div class="box">
            <span class="item"></span>
            <span class="item"></span>
        </div>
    </div>
</body>
</html>